This part is a kind of semiconductor called 2SK508.

Function of this product has HIGH FREQUENCY AMPLIFIER -CHANNEL SILICON JUNCTION FIELD EFFECT TRANSISTOR.

Manufacturers : NEC

Image and pinout :

Some of the text within the PDF file :

DATA SHEET JUNCTION FIELD EFFECT TRANSISTOR 2SK508 HIGH FREQUENCY AMPLIFIER N-CHANNEL SILICON JUNCTION FIELD EFFECT TRANSISTOR DESCRIPTION The 2SK508 is low input capacitance and High forward transfer PACKAGE DRAWING (Unit: mm) 2.8 ±0.2 0.4 –0.05 +0.1 admittance, it is suitable for AM tuner, wireless installation and cordless telephone. 1.5 0.65 +0.1 –0.15 0.95 Ciss = 4.8 pF TYP. (VDS = 5.0 V, ID = 10 mA, f = 1.0 MHz) • High forward transfer admittance | yfs |2 = 26 mS TYP. (VDS = 5.0 V, VGS = 0 V, f = 1.0 kHz) ORDERING INFORMATION PART NUMBER 2SK508 PACKAGE SC-59 (Mini Mold) 1 0.3 Marking 1.1 to 1.4 0.16 –0.06 +0.1 0.4 +0.1 –0.05 • Low input capacitance 2.9 ±0.2 FEATURES 0.95 2 3 ABSOLUTE MAXIMUM RATINGS (TA = 25°C) Ga [ ... ]

2SK508 PDF Datasheet Download